Petróleo Brasileiro S.A. - Petrobras PBR has taken a significant step in strengthening its upstream portfolio by signing agreements to acquire the remaining 50% stake in the Tartaruga Verde field and ...

Abstract: This paper presents a voltage control methodology that provides a doubly-fed induction generator (DFIG)-based wind farm with the capability to provide voltage regulation. The controller ...

NASA's Artemis II astronauts returned to Earth with a splashdown landing in the Pacific Ocean after making a high-speed ...

The Artemis II astronauts almost home. NASA's tracker will allow you to keep up with the mission as they prepare for a California splashdown.

The four astronauts on their last full day in space, Thursday, April 10. Today they'll be preparing for their return to Earth ...